When I saw R5.59 I initially thought you might be another resident somewhere in South Africa who's paying a similar rate to me, but saw the UK part and was like "ah shucks... i'm the only one being scammed." At least thats UK rates.
I am paying R5.22 per unit in Cape Town, South Africa (prepaid electricity, Eskom Direct).
I haven't taken a conceited effort to dig and investigate why this is the case. I really should actually. I am being scammed. Imagine having to choose between buying that weekly wine, or having to keep the lights on

.